Photocatalytic TiO₂ based technologies

TiO₂ exists in different phases. The Rutile form has been used since ancient times as a white pigment. However, recently the Anatase form of TiO₂  is gaining interest due to its photocatalytic activity, which could be exploited for various technological applications. As a result hereof TiO₂ based materials and coatings have been synthesized, tested and implemented in products all over the world and today various TiO₂ based technologies and products are already on the market. This includes self-cleaning and anti-microbial surfaces and products such as antifogging and self-cleaning glasses, air and water purifiers etc. The photocatalytic activity of the TiO₂ based products used today needs exposure to UV light in order to be activated, but there are several possibilities yet to be explored and various possibilities for further technological development even without the application of UV light. This seminar on TiO₂ technologies will bring TiO₂ based expertise and technologies on a common platform for sharing knowledge and potential ideas for new products.

The seminar will address the following main issues:
• Photocatalytic TiO₂ synthesis
• TiO₂ based surface technologies and products
• Techniques for characterization of photocatalytic TiO₂ surfaces
• Applications of photocatalytic TiO₂ and environmental issues

This seminar attracts delegates from academia and industry for sharing knowledge, facilitate project ideas, etc. The seminar is organized by the project team on “Anti-microbial Aluminium Surfaces (AMAS)” www.antimas.dk and Clean Catalytic Surfaces (www.cleansurf.dk) which are both research programmes exploring the anti-microbial properties of TiO₂ based coatings.

Who should attend:
• Material and chemical engineers
• Technology forecasters
• Surface technologists
• Researchers and academics

Organized by:
Project team on “Anti-microbial Aluminium Surfaces (AMAS)” and Clean Catalytic Surfaces (CCS), Denmark.
Contact for scientific programme:
Associate Professor Rajan Ambat, Department of Mechanical Engineering, Technical University of Denmark.

Programme for

AMAS/CCS spring seminar on Photocatalytic TiO₂ based technologies

 

Monday 17th of May: Session 1 and 2

Session 1: Photocatalytic TiO₂ synthesis and characterization

09:00-09:15
Welcome

09:15-09:45
Reactive PVD deposition of TiO₂ and doped TiO₂ structures and possibilities
Dr. Klaus Pagh Almtoft, Tribology Centre, Danish Technological Institute

09:45-10:15
Synthesis of TiO₂ by sol gel technique
Professor Per Møller, Technical University of Denmark.

10:15-10:45
Enhancement of the photocatalytic nature of nitrogen-doped PVD-grown titanium dioxide thin films on glass and polymer substrates
Assistant Professor Carlos Tavares, Universidade do Minho, Portugal.

10:45-11:00 Coffee

11:00–11:30
Photocatalysis of volatile molecules on TiO₂ nano- particles and tubes
Dr. M. Di Vece, Center for individual nanoparticle functionality (CINF), DTU.

11:30-12:00
Cold laser ablation of TiO₂
Professor Reijo Lappalainen, Picodeon, Finland

12:00-13:00 Lunch

13.00–13.30
Visible Light TiO₂-Photocatalysts - the Obstacles of New Technologies
Dr. Dipl.-Ing. (FH) Stephan Peter Blöß, Technical Product Manager Photocatalysts, Kronos International Inc., Germany.

Session 2: TiO₂ based surface technologies and products

13:30-14:00
Incorporation of TiO₂ in paints and polymer coatings
Sverrir Grimur Gunnarsson, PhD student, Department of Mechanical Engineering, Technical University of Denmark.

14:00-14:30
The diffusion/reaction model applied on mesoporous TiO₂ based dye solar cells
Anders Rand Andersen, Plastic Technology Division, Danish Technological Institute

14:30-15:00
Considerations concerning implementation of TiO₂ in industrial products
Inge Hald Andersen, MSc, Tribology Centre, Danish Technological Institute.

15:00-15:15 Coffee

15:15-15:45
Photocatalytic TiO₂ and polymer materials – problems or potential?
Dr. Anna V. Svensson, Plastics Technology, Danish Technological Institute.

15:45-16:15
Functional titanium dioxide films; photocatalysts, hospital acquired infection and photodiodes
Professor Ivan P Parkin, University College London, London.

 

Seminar reception at Esrum Kloster.
The reception includes guided tour, dinner, beer and/or wine tasting.

16:45, Departure by bus to Esrum Kloster
17:30, History of Esrum Kloster, taste of beer, exhibition
19:00, Dinner
21:30, Departure
22:00-22:30, Arrival to DTU and Lyngby S-Train Station.

 

Tuesday 18th of May: Session 3 and 4

Session 3: Techniques for characterization of photocatalytic TiO₂ surfaces

09:15-09:45
Detection of hydroxyl radicals in semiconductor photocatalysis and other AOP techniques by help of p-nitrosodimethylaniline (RNO)
Professor Erik G. Søgaard, Aalborg University, Denmark.

09:45-10:15
A simple, flexible and portable device for determining photocatalytic activity
Martin B. Sørensen, MSc, Plastic Technology Division, Danish Technological Institute.

10:15-10:45
Testing TiO₂ for antimicrobial effects
Associate professor Professor Claus Sternberg/Dr. Per Væggemose Nielsen, DTU-Bio/IPU, Technical University of Denmark.

10:45-11:00 Coffee

 

Session 4: Applications of photocatalytic TiO₂ and environment issues

11:00-11:30
Need for hygienic surfaces in the food industry
Henrik Classen, Chemical Engineer, Food safety and hygienic production, Danish Technological Institute.

11:30-12:00
Nanotechnology and nanotoxicology
Dr. Henrik Rye Lam, Senior Toxicologist, DHI.

12:00-13:00 Lunch

13:00–13:30
To be announced

13:30–14:00
To be announced

14:00–14:10
Summarizing and final conclusions